JPH1037559A - Door lock device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a door from being locked or unlocked by an unfair tool and improve the burglary preventing property by rotatably supporting a rotor linked to a key cylinder mechanism and a key lever on a base plate, and arranging it on the rotating central axis of the key cylinder mechanism. SOLUTION: A rotor 71 is arranged on the rotating axial line of the key rotor 92 of a key cylinder mechanism 9, and rotatably supported on the upper side of the vertical wall part 22 of a base plate 2, and the rotation of the rotor 71 is transmitted to a connecting lever through a connecting link 72. The key cylinder mechanism 9 is formed of a key case 91 and key rotor 92 fixed to the exterior panel 6c of a door 6, and the connecting bar of a connecting mechanism 7 is fitted to the fitting groove of the rotor 71 and integrally rotated with the rotor 71 to transmit the rotation of the key rotor 92 to the rotor 71. Thus, even if an unfair tool such as wire is inserted into the door 6, for example, the vertically moving connecting link 72 is hardly moved by the unfair tool.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock device capable of locking and unlocking a door by operating an operation member rotatably supported inside a door.

[0002]

2. Description of the Related Art Conventionally, as this type of door lock device, there is known a door lock device disclosed in Japanese Patent Application Laid-Open No. Hei 2-21758. This is a door lock device provided with a lever which is rotated by a rotation operation of an operation member rotatably supported outside the door to obtain a locked state and an unlocked state of the door.

[0003] In this door lock device, the operating member and the lever are connected by a connecting link that is arranged outside the door inside the door and moves in the vertical direction of the door, thereby transmitting the rotation operation of the operating member to the lever. .

[0004]

However, in the above-described door lock device, the lever is rotated by the up and down movement of a connecting link disposed outside the door inside the door, and the door is locked and unlocked. Therefore, the connecting link can be easily arranged by an unjust tool such as a wire or the like, which is inserted in the vertical direction of the door from a position between the window glass constituting the door and the outdoor panel, etc. It is easy to be moved. As a result, there is a possibility that the lever is rotated by an incorrect tool.

[0005] Therefore, an object of the present invention is to prevent the lever from being operated by an unauthorized tool other than the operation member.

[0006]

The technical means taken in the present invention to solve the above-mentioned technical problem is that it is rotatably supported by a base member, is disposed on a rotation center axis of an operation member, and is provided with the above-mentioned operation means. More preferably, the rotating member is connected to a member and a lever, and more preferably, the rotating member and the operating member are arranged on a rotation center axis of the rotating member and the operating member, and the rotating member and the operating member are connected to each other. A connecting rod that transmits a rotating operation to the rotating member, and a connecting rod that is disposed on the indoor side in the door, connects the rotating member and the lever, and moves the rotating member to the lever by moving the door vertically. It is preferable to have a connecting link for transmitting.

[0007] More preferably, a protection cover fixed to the base member and covering the rotating member, the connecting link and the lever is provided. The door lock device as described in the above.

[0008] More preferably, the protection cover has a through hole having substantially the same diameter as that of the connecting rod through which the connecting rod is inserted.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 to 3, a door lock device 1 includes a base plate 2, a latch mechanism 3, a lever mechanism 4, and an actuator 5.

The base plate 2 has an L-shape, and is disposed in a door 6 of the vehicle as shown in FIG. 1, and a panel 6a in the vehicle width direction (thickness direction of the door 6) of the door 6 is provided. And a vertical wall portion 22 disposed along the vehicle front-rear direction of the door 6 (front-rear direction of the door 6) and close to the panel 6b on the indoor side of the door 6.

As shown in FIG. 4, the latch mechanism 3
Body 31, pole 32, latch 33 and striker 3
4 The body 31 is fixed to the base portion 21 of the base plate 2, and includes a pole 32 and a latch 3.
Accommodates three. The body 31 has an insertion groove 3 through which a striker 34 enters and exits in response to opening and closing operations of the door 6.
1a is formed. The pole 32 and the latch 33
The body 31 is rotatably supported by the pins 32a and 33a, respectively. The striker 34 is fixed to a vehicle body (not shown) facing the panel 6a of the door 6 when the door 6 is closed. On the outer peripheral surface of the latch 33, a U-shaped groove 33b for receiving the striker 34 that has entered the insertion groove 31a of the body 31 and an engagement claw 33c capable of engaging and disengaging with the pawl 32 are formed. Paul 32
The rotation operation engages with the engagement claw 33c of the latch 33. The pole 32 thus configured
And the latch 33, the striker 34
The pawl 32 and the engaging claw 33c of the latch 33 are engaged in the state of being received in the U-shaped groove 33b, and the rotation of the latch 33 is regulated by the pawl 32, thereby holding the door 6 in the closed state. The door 6 can be opened by rotating the pawl 32 to release the engagement of the latch 33 with the engaging claw 33c.

As shown in FIGS. 2 and 3, the lever mechanism 4 includes a lift lever 41, an open lever 42, a locking lever 43, a cancel lever 44, a slide bush 45, and a key lever 47.

The lift lever 41 is disposed on the base 21 of the base plate 2 and
Is rotatably supported by a pin 32a that supports. The lift lever 41 is fitted to the pawl 32 by a fitting flange portion 41 a formed on one of the arms thereof, and rotates integrally with the pawl 32. Also, the engagement flange 41 is provided on one and the other arm portions of the lift lever 41, respectively.
b, 41c are formed. Further, the lift lever 41
Has a leg portion 41d extending to face the other arm portion, and the leg portion 41d is linked to an inside handle (not shown) provided on a panel 6b on the indoor side of the door 6 with the leg portion 41d (see FIG. 1). (Not shown) and an inside lever 46. The inside lever 46 is rotatably supported on the upright wall 22 of the base plate 2 by a pin 46a.

The open lever 42 is connected to the lift lever 41
Similarly to the above, it is arranged on the base portion 21 and rotatably supported by the pin 32a. The open lever 42 has one arm connected to an outside handle 8 (shown in FIG. 1) provided on a panel 6c on the outdoor side of the door 6 via a link (not shown). Open lever 42
Is formed with a pin portion 42a.

The locking lever 43 is disposed on the base 21 and is rotatably supported on the base 21 by pins 43a. The locking lever 43 is connected at one arm thereof to a lock knob (not shown) provided on a panel 6b on the indoor side of the door 6 via a link, and an output lever 52 and a key lever 47 of the actuator 5 which will be described later. And a key cylinder mechanism 9 (shown in FIG. 1) provided on a panel 6c on the outdoor side of the door 6 via a connecting mechanism 7.
It is connected to. The other arm of the locking lever 43 has an arc-shaped long hole 43 centered on the pin 32a.
b is formed.

The slide bush 45 is slidably supported by the other arm of the open lever 42.
The slide bush 45 has a pin portion 45 a formed therein, and is slidably inserted into the elongated hole 43 a of the locking lever 43. Also, the slide bush 45 has
An engagement protrusion 45b is formed which is detachable from the engagement flange 41c of the lift lever 41 by the rotation of the open lever 42. The slide bush 45 thus configured
Is slid with respect to the other arm portion of the open lever 42 through the insertion of the elongated hole 43b and the pin portion 45a by the turning operation of the locking lever 43.
The engagement protrusion 45 b is provided on the engagement flange 4 of the lift lever 41.
1c is located on the engagement locus or deviates from the engagement locus. As a result, a locked state and an unlocked state of the door 6 are created.

The cancel lever 44 is swingably fitted and supported on the locking lever 43 by a snap pin 44a formed integrally with the locking lever 43. A long hole 44b is provided at the free end of the cancel lever 44.
The pin 42a of the open lever 42 is slidably inserted. Also, the cancel lever 43
On the free end portion, an engaging projection 44c is formed in parallel with the elongated hole 44b so as to be able to engage and disengage with the engaging flange 41b of the lift lever 41 by a rotation operation integral with the pawl 32 of the lift lever 41. Cancel lever 4 configured as above
4 is swung with respect to the locking lever 43 by the rotation of the open lever 42, whereby the engagement protrusion 4
4c is located on or off the locus of engagement of the lift lever 41 with the engaging flange 41b.
As a result, the locking operation according to the turning operation of the open lever 42, the so-called keyless entry operation, and the canceling of the locking operation are performed.

The actuator 5 includes a motor (not shown) housed in a housing 51. The actuator 5 has a vertical wall 22 of the base plate 2 in the vertical direction of the vehicle (the vertical direction of the door 6 shown in FIG. 1). It is supported on the lower side. The output shaft 53 of the actuator 5 extends to the outside through a wall portion 51a parallel to the upright wall portion 22 of the housing 51, and is fixed to the extending portion so that the output lever 52 rotates integrally. Have been. This output lever 5
2 is connected to the locking lever 43. The output lever 52 has an engagement protrusion 52a.
In such a configuration of the actuator 5, by operating the motor to rotate the output shaft 53, the output lever 52 is rotated integrally with the output shaft 53. Thus, the locking lever 43 is rotated.

The key lever 47 of the lever mechanism 4 described above.
Is rotatably supported by a pin 47a on a wall 51a of a housing 51 of the actuator 5. The key lever 47 has a notch 47b formed therein, and the notch 47b has an output lever 52 of the actuator 5.
The engagement protrusion 52a is received, and the key lever 47
Of the notch 47b and the engaging projection 52
The rotation of the key lever 47 is transmitted to the output lever 52 by contact with the output lever 52. Further, the key lever 47 is formed with a shaft portion 47c for linking with the connecting mechanism 7 described later.

Note that the key lever 47 is moved to the locking lever 4.
3 may be directly connected. In this case, the key lever is arranged coaxially with the locking lever 43, and has a notch 47b.
Is formed on the locking lever 43.

Next, the connecting mechanism 7 which is a main part of the present invention will be described in detail.

As shown in FIGS. 1 to 3 and 5, the connecting mechanism 7 includes a rotor 71, a connecting link 72, a connecting lever 73, and a connecting rod 74.

The rotor 71 has a cylindrical shape, is coaxially arranged on a rotation center axis of a key rotor 92 of the key cylinder mechanism 9 described later, and has a snap pin 71a integrally formed on one end face. The upright wall portion 22 of the base plate 2 is rotatably fitted and supported on the upper side in the vehicle vertical direction (the vertical direction of the door 6 shown in FIG. 1). On the other end face of the rotor 71, a rectangular fitting groove 71b is formed. Further, an arm portion 71c is formed to extend on the peripheral surface of the rotor 7. Connection lever 7
Reference numeral 3 denotes a flange parallel to the upright wall 22 of the base plate 2 formed below the base 21 of the base 2 in the vehicle vertical direction (the vertical direction of the door 6 shown in FIG. 1) by the integrally formed snap pins 73a. The portion 23 is swingably fitted and supported. The connecting lever 73 has a hole 73 through which the shaft 47c of the key lever 47 is inserted.
The pivoting operation of the connecting lever 73 is performed by connecting the shaft portion 47c to the hole portion 73b.
7 is transmitted. The connecting link 72 is connected to the base plate 2
Are arranged in parallel with and close to the upright wall portion 22. The connecting link 72 is inserted at one end 72a thereof into a hole 71d formed on an arm 71c of the rotor 71 and connected to the rotor 71, and is connected to a hole 73c formed on the connecting lever 73 at the other end 72b. It is inserted and connected to the connection lever 73. Thereby, the rotor 71
Is transmitted to the connection lever 73 via the connection link 72.

The rotor 71, the connecting link 72 and the connecting lever 73 are covered by a protect cover 10 which covers the output lever 52 of the actuator 5 and the lever mechanism 4. The protect cover 10 is fixed to the base plate 2 and has a through hole 10a. The through hole 10 a exposes the other end surface of the rotor 71 and has a diameter substantially equal to the diameter of the rotor 71.

The multi-end 72b of the connecting link 72 may be directly connected to the key lever 47 without using the connecting lever 73.

The key cylinder mechanism 9 is a well-known one, and comprises a key case 91 fixed to a panel 6c on the outdoor side of the door 6 and a key rotor 92 rotatably housed in the key case 91. The coupling mechanism 7 described above.
Is integrally formed on the end face of the key rotor 92. The connecting rod 74 has a flat plate shape,
The key rotor 92 and the rotor 71 are coaxially arranged on the rotation axis, and are fitted into the fitting grooves 71 b of the rotor 71 so as to rotate integrally with the rotor 71. As a result, the connecting rod 74 is rotated by its own rotating operation.
Is transmitted to the rotor 71 directly.

In such a configuration, when the key cylinder mechanism 91 is operated, the connecting rod 74 rotates to rotate the rotor 71.
Rotates. Thereby, the connecting link 72 moves up and down, and the connecting lever 73 is swung. This connecting lever 73
The key lever 47 is rotated by the swing of the
Rotates. As a result, the locking lever 43 rotates and the locked state and the unlocked state of the door 6 are obtained.

As described above, the rotating rotor 71 operates.
Is provided, and the key rotor 92 of the key cylinder mechanism 9 is connected by the connecting rod 74 that rotates. Therefore, even if an unauthorized tool (for example, a wire or a ruler) different from the key cylinder mechanism 9 is inserted into the door 6, However, the moving direction of the incorrect tool does not coincide with the moving direction of the connecting rod 74, and the connecting link 72 that moves up and down is less likely to be moved by the incorrect tool. Also, the connecting link 72 that moves up and down.
Is covered by the protection cover 10 and is disposed close to the upright wall 2a of the base plate 2, that is, is disposed close to the panel 6b on the indoor side of the door 6, so that the connection link 72 is It is not directly moved by unauthorized tools. Thereby, the key lever 4
7 can be prevented from being moved by an unauthorized tool, and the locked door 6 can be prevented from being unlocked by an unauthorized tool, thereby improving the anti-theft property.

[0029]

According to the present invention, the rotation of the operating member is transmitted to the lever by the rotating operation of the rotating member supported by the base member, so that it is difficult for the lever to be moved by an unauthorized tool different from the operating member. Can be. Thus, the door can be prevented from being locked and unlocked by an unauthorized tool, and the antitheft property can be improved.

According to the present invention, the rotating member and the lever are covered by the protector cover and connected by the connecting link disposed inside the door, so that the length of the connecting link can be adjusted. In addition, the degree of freedom in arranging the rotating member can be improved while ensuring theft prevention.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional perspective view of a door showing a connection structure between a rotating member and an operation member of a door lock device according to the present invention.

FIG. 2 is a plan view of the door lock device according to the present invention.

FIG. 3 is a side view of the door lock device according to the present invention.

FIG. 4 is a plan view showing a latch mechanism of the door lock device according to the present invention.

FIG. 5 is an exploded perspective view showing a connection mechanism of the door lock device according to the present invention.

[Explanation of symbols]

 2 (base plate) 6 door 9 operating member (key cylinder mechanism) 10 protect cover 47 key lever (lever) 71 rotor (rotating member) 72 connecting link 74 connecting rod 10a through hole

Claims (4)

[Claims] 1. A door lock device comprising a lever which obtains a locked state and an unlocked state of a door by rotating by an operation of an operation member rotatably supported on the outside of the door,
A door lock device rotatably supported by a base member, disposed on a rotation center axis of the operation member, and having a rotation member linked to the operation member and the lever. 2. A connecting rod disposed on a rotation center axis of the rotating member and the operating member for connecting the rotating member and the operating member and transmitting a rotating operation of the operating member to the rotating member, 2. The door lock according to claim 1, further comprising: a connection link disposed on the indoor side of the door for connecting the rotating member and the lever, and transmitting a rotating operation of the rotating member to the lever by a vertical movement of a door. apparatus. 3. The door lock device according to claim 2, further comprising a protect cover fixed to said base member and covering said rotating member, said connecting link and said lever. 4. The door lock device according to claim 3, further comprising a through hole formed in the protection cover and having a diameter substantially equal to that of the connection rod through which the connection rod is inserted.